The current implementation looks nice, however, they serve the same function and cause some confusion. (At least, I tried to click the drag and drop surface, expecting it to open the dialog)
Suggested implementation:
Increase the size of the drag and drop box (I'm lazy :P)
Make it so that clicking the drag and drop box also opens the file selection
Move the button (or its text) within the drag and drop box
To keep the quality of the rest of the components, we can probably use a Mui buttonbase for the whole drag and drop box.
The current implementation looks nice, however, they serve the same function and cause some confusion. (At least, I tried to click the drag and drop surface, expecting it to open the dialog)
Suggested implementation: